Test head for a finger tester, and method for testing printed circuit boards

Abstract

The invention relates to a test head for a finger tester for testing printed circuit boards, a finger tester and a method for testing printed circuit boards. The test head comprises a slide, which can be movably arranged on a traverse of the finger tester, a holding module for holding a swivel arm, which is formed at the free end remote from the holding module for receiving a test probe, a lifting device, by means of which the holding module is formed to be movable in the vertical direction relative to the slide, the lifting device comprising a vertical guide rail with a rolling bearing, and a swivel device for rotating the holding module and thus the pivoting arm about a vertical axis of rotation, wherein the swivel device comprises a motor for rotating the swivel device. The test head is characterized in that the swivel device comprises a shaft or axis, wherein a rotating member of the swivel device is arranged concentrically to the shaft or axis so that the rotating member surrounds the shaft or axis, and the rotating member is either mounted on the axis with at least one bearing or the shaft is mounted on the slide with at least one bearing, and the motor is formed as a direct drive, wherein the rotating member forms the rotor of the motor.

Dependencies are inferred from the claim text.